340 HERBERTA. 
VII. HERBERTA, Gray. 
Nat. Arr. Brit. pl. (1821). Schisma Dum. Comm. Bot. (1823). 
Sendtnera Nees. in Syn. Hep. (1845). 
Plante proceriores, cespitosze, colore rufo-badio insignes, apice 
novello interdum flavide, in H. pensili albide, caudice repente 
flagellisque radicelliferee, ceterum arhize. Caules 3-9-pollicares, 
validi opaci, parum ramosi, assurgentes vel perseepe penduli, ramique 
apice persepe hamati. ami postici, sc. ex angulo folioli orti; 
adveniunt interdum sub flore ? sterili innovationes due laterales, 
opposite, unde caulis furcatus evadit; magis frequenter autem 
innovationes solitarize et postice sunt. 
Folia incuba vel fere transversa, magna, angusta, 2—4-plo longiora 
quam lata, tristicha:—postica, lateralibus conformia, vix minora— 
decurva et plus minus hamato-secunda, canaliculato-concava (vix 
subcomplicata), basi in aliis speciebus ciliata, ab apice ad $—? acute 
biloba, lobis eruribusve paululum divergentibus, sensim et longe 
acuminatis subintegerrimis, postico subangustiore; e cellulis mediis 
elongatis discoloribus vittata, vitta basi vel altius bifurca, furcis in 
erfirium apice desinentibus. Cellule parvee pachydermes scaberule 
subrhomboidex; vittee autem triplo longiores, lineares et (infime 
saltem) e fibra spirali inclusa plurisinuate. 
Flores Qioici: 9 terminales, capitati, innovatione (raro 2 vel 3) 
suffulti.  Bractee plurijugee, densissime equitantes, perianthium 
arcte amplexantes, tota longitudine tamen liberee, foliis dimidio vel 
duplo fere longiores, brevius tamen bilobe, ab ipsa basi profunde 
bisulcee et inter sulcas in carinam altam prominulee, margine, interdum 
ad apicem tenuem usque, ciliate spinoseeve. Pistillidia plura, ad 
24, sterilia ad calyptree basin persistentia. Perianthia apice solo 
emersa, angusta, 3-5-plo longiora quam lata, ovato-subulata vel 
anguste fusiformia, trigona, carinis sulca exaratis exindeque peri- 
anthia apicem constrictum versus 6-plicata videntur, ore ad } longi- 
tudinis 6- (8-) fida, laciniis ad bractearum loborum instar tenuibus 
armatisque. Loco carine tertize (postice) raro inveniuntur carinz 
due, approximate, unde perianthium inzequaliter 4-carinatum evenit. 
Culyptra libera parva obovata unistrata profunde trifida. Capsula 
magna globosa, in pedicello valido brevi longioreve exserta, 5—8-strata, 
omnibus stratis columnis fuscis crassis in cellularum pariete fulcitis, 
intimo fibris semiannularibus notato, 4-valvis, valvulis ineequaliter 
bipartitis—interdum ad 6-partitis. 
